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Although Kolkmann admits that concrete courts cost substantially more initially than asphalt, an asphalt surface often requires more frequent and costly upkeep over its lifespan to repair cracking and settling. "Through our own recordkeeping, we estimate that an asphalt court will be unavailable for play, due to repairs being made, for about 100 days over a 20-year period," he says. "During this same time, a post-tensioned slab would be down for about 20 days. In our climate in the upper Midwest, repairs can only be done in the summer, when everyone wants to play. For a private court, the downtime may not be as crucial. But for a club, it can be a substantial unknown cost in lost revenue."
Badminton rackets are light, with top quality rackets weighing between about 70 and 95  grams (with guts ). Modern rackets are composed of carbon fiber composite (graphite reinforced plastic), which may be augmented by a variety of materials. Carbon fiber has an excellent strength to weight ratio, is stiff, and gives excellent kinetic energy transfer. Before the adoption of carbon fiber composite, rackets were made of wood to their excessive weight and cost.
Sportswriter John Wertheim of Sports Illustrated stated in an article in July 2010 that Serena Williams is the greatest female tennis player ever with the argument that "Head-to-head, on a neutral surface (i.e. hard courts), everyone at their best, I can't help feeling that she crushes the other legends.".[120] In a reaction to this article Yahoo sports blog Busted Racket published a list of the top-10 women's tennis players of all time placing Martina Navratilova in first spot.[121] This top-10 list was similar to the one published in June 2008 by the Bleacher Report who also ranked Martina Navratilova as the top female player of all time.[122]
To determine who serves first, you flip a coin or (more likely) spin a racket. Whoever wins the toss gets to decide one of four things: that she wants to serve first, that she wants to receive first, which side of the court she wants to start on (in which case, the opponent chooses who serves first), or that she wants to leave the choices up to her opponent.

In 1926, promoter C. C. Pyle established the first professional tennis tour with a group of American and French tennis players playing exhibition matches to paying audiences.[26][37] The most notable of these early professionals were the American Vinnie Richards and the Frenchwoman Suzanne Lenglen.[26][38] Once a player turned pro he or she was no longer permitted to compete in the major (amateur) tournaments.[26]

In 2019, the Australian Open introduced a "super-tiebreak" for singles in the final set, replacing the previous format in which the final set would continue until one player was ahead by two games. The new format for the final set is similar to the "12-point tiebreaker", but with the winner being the first to 10 points instead of 7 (and they must still win by 2 points).[27] Tennis Australia has called this a "10-point tiebreak", though this is inconsistent with the reasoning behind the naming of the "12-point tiebreaker", which represents the minimum total number of points (a score of 7–5); the same reasoning would make the new format an "18-point tiebreaker" with a minimum winning score of 10–8.[28]

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The fourth Babolat tennis racquet on our top review list is also one of their more affordable models. Just don’t make the mistake of taking it as meaning this tennis racquet is not a good one. It is an excellent model for novice and intermediate level players. It is also a racquet that favors those players that prefer to use more power than finesse when playing the game of tennis.

Mi nombre es Legna , ofrezco entrenamientos en varios deportes como Volleyball, natacion, tennis .... Toda mi vida ha estado vinculada al deporte, estudie mi pre universotario en la ESPA NACIONAL  de Cuba como atleta de windsurf hasta terminar mi licenciatura en Sociologia.  En estos momentos me encuentro desde hace mas de un año en Miami trabajando independiente como Fotografo ya que tambien me gradue en arte y fotografia(ISA) ademas trabajo como tennis coach con ninos de 4 a 7 años. Me encantaria dar clases de natacion y volleyball en mi tiempo libre... My name is Legna, I offer training in various sports such as V ... View Profile
Racket is the standard spelling of the word. Racquet is an alternative spelling[2][3] used more commonly in certain sports (squash, racquetball, badminton, tennis) and less commonly in others. While some writers, especially those outside North America, prefer the French-influenced racquet, racket is the predominant spelling by a large margin.[1] Similarly, while some believe that racket came about as a misspelling of racquet, racket is in fact the older spelling: it has been in use since the 16th century, with racquet only showing up later in the 19th century as a variant of racket.[1]
A game consists of a sequence of points played with the same player serving, and is won by the first side to have won at least four points with a margin of two points or more over their opponent. Normally the server's score is always called first and the receiver's score second. Score calling in tennis is unusual in that (except in tie-breaks) each point has a corresponding call that is different from its point value. The current point score is announced orally before each point by the judge, or by the server if there is no judge.
During informal play of tennis, especially at tennis clubs in the U.S. (also in other English speaking countries), score announcements are frequently shortened with the use of abbreviations. For example, a score 15 is replaced with "five", or in some cases "fif". "Love" is often substituted to indicate "zero". Similarly, the scores of 30 and 40 may sometimes be spoken as "three" or "four" respectively. A score of 15-all may sometimes be announced as "fives." To further confuse score announcements, a score of 30-all (30–30) may often be called "deuce", and the following point referred to as "ad in" or "ad out" (or "my ad" or "your ad"), depending on which player (or team) won the point. The logic for this is that a 30-all score is effectively the same as deuce (40–40).[34]
Weights of a racket also vary between 7 ounces (200 g) unstrung and 12.6 ounces (360 g) strung. Until the 1980s, rackets weighted at "medium" were produced. "Heavy" rackets were produced during the height of the wood era (e.g. the 1960s), very sparingly. The "medium" weight is heavier than any of the rackets produced since it was discontinued by companies. Many professionals added weight to their rackets to improve stability. Many continue to do so. Pete Sampras added lead tape to make his racket have a 14 ounces (400 g) weight and Venus Williams is known for using a frame modified to be quite heavy, in terms of the recent times average. By contrast, Andy Roddick surprised many when he said he used a stock Pro Drive series model, series of racket which was light when compared with the rackets used by most top professionals. In both recreational and professional tennis, the trend has been away from heavy rackets and toward lighter rackets, despite the drawbacks from light rackets, such as increased twisting. Lawn tennis rackets originally flared outward at the bottom of the handle to prevent slippage. The rounded bottom was called a bark bottom after its inventor Matthew Barker. But by 1947, this style became superfluous.[clarification needed] More mass gives rackets "plow through", momentum that continues once the player has managed to get the racket into motion and which is more resistant to stoppage from the ball's momentum. This can give the perception that the racket produces shots with more power, although this is complicated by the typically slower stroke production. Higher mass typically involves a slower swing but more energy to execute the swing. More mass also provides more cushioning against ball impact shock, a source of injuries such as tennis elbow. However, high racket mass can cause fatigue in the shoulder area. Typically, it is safer for the body to have higher mass. More mass, additionally, provides more stability. It makes the racket more resistant to twisting forces and pushback. The drawbacks are that heavier rackets have lower maneuverability (reducing reaction time) and require more energy to move. As a racket gets heavier, the player finds it increasingly difficult to do fast reaction shots such as quick volleys and returns of serve. However, the additional mass can help with return of serve, in particular, by making the racket much more resistant to twist from a high-powered service. Light rackets have the additional drawback of making it easier for beginning players to use inappropriate wrist-dominant strokes, which often leads to injury. This is because poor stroke mechanics can be much easier to produce with a lightweight racket, such as in using one's wrist to mostly swing the racket. An extremely typical mistake beginning players make is to choke up heavily on the racket (to try to compensate for twist from a light racket, as well as too high racket angle upon impact) and use the wrist too much. The only professional well-known player to have had success with a strongly choked-up grip is Zina Garrison.
A legal service starts a rally, in which the players alternate hitting the ball across the net. A legal return consists of the player or team hitting the ball before it has bounced twice or hit any fixtures except the net, provided that it still falls in the server's court. A player or team cannot hit the ball twice in a row. The ball must travel past the net into the other players' court. A ball that hits the net during a rally is still considered a legal return as long as it crosses into the opposite side of the court. The first player or team to fail to make a legal return loses the point. The server then moves to the other side of the service line at the start of a new point.[54]
This level and the pro level share a lot of similarities simple because things have gotten a lot competitive in recent years. NCAA level players sometimes go pro after graduating college like John Isner. So, they accept nothing but close to perfection from young aspirants. There are NIAA colleges that offer some partial scholarships and they do not have the same rigorous requirements as the NCAA but often times they are very small colleges which are always the second choice for most students.

When both sides have won the same number of points then: when each side has won one, or two, points, the score is described as "15-all" and "30-all" (or "15-up" and "30-up"), respectively. However, if each player has won three points, the score is called as "deuce", not "40–all". From that point on in the game, whenever the score is tied, it is described as "deuce", regardless of how many points have been played.

This is a great question because it is so important to playing the game well. A grip size that is too small will cause your hand to slip on your racquet a little and a grip size that is too big will restrict your wrist movement and make it hard to adjust your grip as you play.To measure your grip you need to take out a measuring tape. Place your fingers on your hand extended out and together and then turn your palm up. With the measuring tape take a measurement from the very end of your ring finger down to the bottom crease in your palm (usually adjacent to where your thumb attaches to your palm). That will be the size grip you need to look for. It usually will fall between 4 inches and 4 ¾ inches on most people.Keep in mind that you may want to add a layer of grip tape to your new racquet like many people do. If you are one of those people then it is best to get a grip size that is one size smaller than what you measured your hand to be. This will allow for the extra grip tape without making the grip too big for your hand.
Further, the patenting of the first lawn mower in 1830, in Britain, is strongly believed to have been the catalyst, worldwide, for the preparation of modern-style grass courts, sporting ovals, playing fields, pitches, greens, etc. This in turn led to the codification of modern rules for many sports, including lawn tennis, most football codes, lawn bowls and others.[9]